Summary

Gladwell explores how small actions can have a big impact on society. Designing an epidemic involves three rules. The law of the few states that a small number of people, known as connectors, mavens, and salesmen, drive the spread of trends and social behaviors. The stickiness factor refers to the infectious nature of a trend or behavior and requires a clear call to action and attention to the small details. Finally, the power of context describes how our environment affects behavior. Many of an individual’s traits are actually highly situational – small changes in context can greatly alter behavior.

Key Takeaways

• Tipping point: critical threshold where step change takes place in epidemic, adoption
• Epidemic of behavior: geometrically contagious by nature, follows the 3 rules of epidemics
• Translation: rumors are leveled (nuance omitted), sharpened (specific details), and assimilated
• Network effect / Fax effect: the more people that adopt a technology, the more value it provides

The 3 rules of epidemics

• Law of the few: connectors, mavens, and salesmen drive epidemic spread
  • Connectors: people specialists
    • Know lots of people by cultivating weak ties, casual meetings (new view points, ideas)
    • Part of many niches and subcultures (genuinely enjoy diverse people)
  • Market mavens: idea specialists
    • Experts with social motivation
  • Salesmen: persuasion specialists
• Stickiness factor: infectious agent
  • Conventional vs direct advertising: latter is data-driven
  • Call to action is key
  • Overstimulation leads to disengagement
  • Need to work obsessively on, research, find the little things that create stickiness
• Power of context: environment
  • Environment can fundamentally affect behavior
  • Honestly, other traits assumed to be part of personality are actually highly situational
  • “Human beings invariably overestimate the importance of fundamental character traits and underestimate the importance of the situation and context”
  • Small changes in context (eg you’re late) can vastly change behavior
  • Humans have a channel capacity of 6 or 7 items (eg phone numbers)
  • “Brains get bigger to handle the complexities of larger social groups”
  • 150: maximum number of meaningful friendships for individual (based on brain)
    • Max group size without hierarchy
  • Transactive memory: joint memory system between acquainted individuals
  • Diverse groups of 150 can better determine who has access to transactive knowledge

Notes

Introduction

• Epidemic of behavior that’s contagious by nature (Hushpuppies, lower crime)
• Epidemics are a geometric progression
• Tipping point: critical threshold where step change takes place in epidemic, adoption
• Why do some ideas, behaviors, or products start epidemics while others don’t?
• How can we start positive epidemics?

1: The 3 rules of epidemics

• Epidemics are a function of:
  • Law of the few: people who transmit
  • Stickiness factor: infectious agent
  • Power of context: environment
• 80/20 principle: 80% work by 20% people
  • Even more extreme for epidemics

2: Law of the few

• Proximity overpowers similarity when it comes to connections
• “6 degrees of connection” is asymmetric, relies on super-connectors
• Connectors: people specialists
  • Know lots of people
  • Cultivate weak ties, casual meetings
  • Part of many niches and subcultures
  • Genuinely enjoy diverse people
• Weak ties provide new view points, ideas
• Market mavens: idea specialists
  • Experts with social motivation
• Salesmen: persuasion specialists
  • Nodding motion leads to subconscious agreement
  • Empathy, mimicry, micro-subtleties of movement drive persuasion

3: Stickiness factor

• Conventional vs direct advertising: latter is data-driven
• Call to action is key
• Overstimulation leads to disengagement
• Need to work obsessively on, research, find the little things that create stickiness

4: The power of context, part 1

• Environment can fundamentally affect behavior
• Honestly, other traits assumed to be part of personality are actually highly situational
• “Human beings invariably overestimate the importance of fundamental character traits and underestimate the importance of the situation and context”
• Small changes in context (eg you’re late) can vastly change behavior

5: The power of context, part 2

• Humans have a channel capacity of 6 or 7 items (eg phone numbers)
• “Brains get bigger to handle the complexities of larger social groups”
• 150: maximum number of meaningful friendships for individual (based on brain)
  • Max group size without hierarchy
• Transactive memory: joint memory system between acquainted individuals
• Diverse groups of 150 can better determine who has access to transactive knowledge

6: Case study: rumors, power of translation

• Translation: rumors are
  • Leveled: nuanced details are left out
  • Sharpened: details more specific
  • Assimilation: changed to make more sense to spreaders
• Need to get ahead of trends, time them

7: Case study: Suicide

• News of suicide leads to temporary 5-15% increase in suicides immediately after
  • Tipping point for others
• Cigarette addiction is highly genetic, not environmental as often thought
• Tipping point for nicotine addiction
• Experimentation does not lead to addiction

8: Conclusion

• Fax effect / law of plentitude: the more people that adopt a particular technology, the more valuable it becomes (network effect)
• Immunity in communication: ^ in reverse when too prevalent, leading to immunity
• Role of mavens in the modern economy